The mass airflow (MAF) sensor has the important task of keeping track of how much air flows into the engine. It keeps track of this information because the engine control unit uses the air in the combustion chamber to fire up your automobile and keep it running. Over time, the MAF sensor can get dirty or go bad. Demore’s Automotive lists the signs that this is happened below.
Difficult Starts
If it is becoming increasingly difficult to get your automobile started, it’s possible that the MAF sensor is bad and there is either too much air or not enough air in the combustion chamber. This is a common problem with a faulty mass airflow sensor. It sends incorrect data to the engine control unit and, as such, the air and fuel mixture in the combustion chamber is off.
Frequent Stalls
Your vehicle may also stall frequently once you get it started. Again, if there is too much air in the combustion chamber, the engine is fuel-starved and it cannot maintain operation. The engine needs a certain amount of fuel to generate power. A malfunctioning MAF sensor can throw that fuel balance off.
Stress Hesitation
Unless you have overloaded your vehicle, it should be able to handle stress. In other words, it shouldn’t hesitate when you drive up steep hills or when you tow things. If you notice that your engine drags when you are driving up inclines, this is also a sign that it doesn’t have enough fuel. This could be because the MAF sensor has reported the wrong air intake numbers.
Acceleration Hesitation
A fuel-starved engine will also hesitate when you press down on the accelerator. It’s important to understand that a dirty MAF sensor can cause this problem but so can a malfunctioning oxygen sensor or an issue with the fuel system. It’s possible that the MAF sensor is fine but you have clogged fuel injectors, and this is why your vehicle hesitates when you try to accelerate.
Hiccupping Engine
If you notice the engine hiccupping or sputtering while you are driving along, this, too, points to a mass airflow sensor problem. Other things, such as vacuum leaks or fuel pump issues, can also make your engine hiccup or sputter. Bring your vehicle to our shop if the engine is having performance issues such as hiccupping, sputtering, or surging.
Idling Problems
Finally, you may notice that your engine is also having idling problems. For example, the engine may idle lean, which means there is too much air in it. The engine may also idle rich, which means there is too much fuel in it. Either way, the mass airflow sensor could be the culprit.
Call Demore’s Automotive in Palmer, MA, today to schedule an appointment for your automobile if it is experiencing any of the problems listed above.
